- #1

doc.madani

- 90

- 0

my textbook equation for torque is T = FD sin theta

whilst the equation i have been taught is T = nBIA cos theta

and... my textbook says that torque will be the greatest when applied at right angles (90 degrees). However the cos theta eqn. if you sub cos 90 it equals 0. Hence no torque

what to do?

thanks